Feature 2 | GERMANY
Successful series sticks with engines MaK marine engines have been ordered for Harms new anchor handling tugs.
W
hen maritime services company Harms Bergung Transport & Heavylift GmbH from
Hamburg re-entered the sea towage market in 2004, there was a lot of speculation about what was to come. Since then, Harms’ fi rst new generation, MaK-powered anchor handling tug (AHT) Primus has proven its worth in daily service. The third generation of Harms AHTs
followed in 2007 and 2008 with the sister ships Janus and Ursus. Another two newbuildings, Uranus and Orcus, are expected for delivery in 2008 and 2009. Finally, two ships to be named Pegasus and Centaurus are due into service in 2009. All the ships are being built at
Mützelfeldtwerſt in Cuxhaven, Germany, on behalf of MAN Ferrostaal AG, of Essen. T ey are also all powered by MaK main engines and Cat generating sets. Primus is propelled by two MaK 9M25
main engines, each rated 2970kW at 750rev/ min, providing a continuous bollard pull of 104tonnes. T is ship is 48.87m long, 13.80m wide, and has a draught of 5.20m. Janus and Ursus are considerably larger
with a length of 65m, a beam of 18.50m and a draught of 6.80m. Both rely on two MaK 6M32C plus two MaK 8M32C main engines
in father-and-son confi gurations.
“The offshore vessel market has been buoyant for quite a while,providing us with lots of opportunities to establish MaK and Cat marine engines as the preferred source of power.”
T ese four engines provide 500kW per
cylinder at 600rev/min for a total 14,000kW power and 220tonnes continuous bollard pull. Janus and Ursus also utilise two Cat 3412 generating sets and one Cat 3056 emergency gensets each. Harms’ most recent newbuildings, Uranus
The frontside view of a MaK 8M32C marine engine.
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and Orcus will be even more powerful. Four MaK 9M32C main engines, rated 4500kW at 600rev/min each, will provide 18,000kW total power and a minimum expected
bollard pull of 280tonnes. Vessel size will again slightly increase to 74.30m length, 18.50m beam, and 8.50m draught. The vessel is expected to have a speed of 17knots providing a fast, but still comfortable, fl oating home for up to 69 people. Uranus and Orcus will have two Cat 3412
generating sets and one Cat C9 emergency genset each for electrical power supply. Zeppelin Power Systems, the German Caterpillar dealer, has also delivered four shaſt generators for Power Take-Off (PTO). The two ships of the Centaurus class,
expected in 2009, will be equipped with two MaK 9 M 25 C marine engines, rated 2970kW at 750rev/min each. As with Primus, these AHTs will provide 16knots and a bollard pull of about 100tonnes. Alexander Kohse, territory sales manager
at Caterpillar Marine Power Systems in Hamburg, highlighted the partnership with both Mützelfeldtwerft and MAN Ferrostaal, ‘T e off shore vessel market has been buoyant for quite a while, providing us with lots of opportunities to establish MaK and Cat marine engines as the preferred source of power aboard. However, a series of seven impressively-shaped AHTs, both built and operated close to CMPS Hamburg headquarters naturally commands special attention. We are happy to hear that further repeat orders are under consideration.’ SBI
Ship & Boat International September/October 2008
The AHT Janus has been installed with two 8M32C and two 6M32C marine engines.
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